Mary selects marbles from a different bag without looking at them. This bag of marbles has 5 green marbles, 3 red marbles, and 7 blue marbles. What is the probability of her picking a red or blue marble? Write your answer in the simplest form. Approximate probability and Circle the likelihood of the event on the number line provided below ​

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Negative 5 1/12 + negative 4 1/4 + 6 3/4